Railroad Archives Online
- CollectionE0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2007 - Part fabrication drawing
- 2193 more...
- ItemJSBP10726 - Great Northern Railway Historical Society Blueprint Collection JSBP10726, undated.
- ItemJSBP10727 - Great Northern Railway Historical Society Blueprint Collection JSBP10727, undated.
- ItemJSBP10728 - Great Northern Railway Historical Society Blueprint Collection JSBP10728, undated.
- ItemJSBP10729 - Great Northern Railway Historical Society Blueprint Collection JSBP10729, undated.
- ItemJSBP10745 - Great Northern Railway Historical Society Blueprint Collection JSBP10745, undated.